utils/grid.py
changeset 136 4faf1726e8ff
parent 128 b48c310f4e24
child 222 8954863e5047
--- a/utils/grid.py	Sat Oct 21 11:35:34 2006 +0200
+++ b/utils/grid.py	Mon Oct 23 09:24:36 2006 +0200
@@ -9,36 +9,36 @@
 
 
 class DataRange:
-    def __init__ (self, start = 0, end = 0, value = ''):
+    def __init__(self, start = 0, end = 0, value = ''):
         self.start = start
         self.end = end
         self.value = value
 class EventString:
-    def __init__ (self, at = 0, value = ''):
+    def __init__(self, at = 0, value = ''):
         self.at = at
         self.value = value
 class EventFloat:
-    def __init__ (self, at = 0, value = 0.0):
+    def __init__(self, at = 0, value = 0.0):
         self.at = at
         self.value = value
 class EventInt:
-    def __init__ (self, at = 0, value = 0.0):
+    def __init__(self, at = 0, value = 0.0):
         self.at = at
         self.value = value
-def ranges_cmp (a, b):
+def ranges_cmp(a, b):
     return a.start - b.start
-def events_cmp (a,b):
+def events_cmp(a, b):
     return a.at - b.at
 class TimelineDataRange:
-    def __init__ (self, name = ''):
+    def __init__(self, name = ''):
         self.name = name
         self.ranges = []
         return
-    def __search (self, key):
+    def __search(self, key):
         l = 0
-        u = len (self.ranges)-1
+        u = len(self.ranges)-1
         while l <= u:
-            i = int ((l+u)/2)
+            i = int((l + u) / 2)
             if key >= self.ranges[i].start and key <= self.ranges[i].end:
                 return i
             elif key < self.ranges[i].start:
@@ -46,51 +46,51 @@
             else:
                 # key > self.ranges[i].end
                 l = i + 1
-        return -1
-    def add_range (self, range):
-        self.ranges.append (range)
-    def get_all (self):
+        return - 1
+    def add_range(self, range):
+        self.ranges.append(range)
+    def get_all(self):
         return self.ranges
-    def get_ranges (self, start, end):
-        s = self.__search (start)
-        e = self.__search (end)
+    def get_ranges(self, start, end):
+        s = self.__search(start)
+        e = self.__search(end)
         if s == -1 and e == -1:
             return []
         elif s == -1:
-            return self.ranges[0:e+1]
+            return self.ranges[0:e + 1]
         elif e == -1:
-            return self.ranges[s:len (self.ranges)]
+            return self.ranges[s:len(self.ranges)]
         else:
-            return self.ranges[s:e+1]
-    def get_ranges_bounds (self, start, end):
-        s = self.__search (start)
-        e = self.__search (end)
+            return self.ranges[s:e + 1]
+    def get_ranges_bounds(self, start, end):
+        s = self.__search(start)
+        e = self.__search(end)
         if s == -1 and e == -1:
-            return (0,0)
+            return(0, 0)
         elif s == -1:
-            return (0,e+1)
+            return(0, e + 1)
         elif e == -1:
-            return (s, len (self.ranges))
+            return(s, len(self.ranges))
         else:
-            return (s,e+1)
-    def sort (self):
-        self.ranges.sort (ranges_cmp)
-    def get_bounds (self):
-        if len (self.ranges) > 0:
+            return(s, e + 1)
+    def sort(self):
+        self.ranges.sort(ranges_cmp)
+    def get_bounds(self):
+        if len(self.ranges) > 0:
             lo = self.ranges[0].start
-            hi = self.ranges[len (self.ranges)-1].end
-            return (lo, hi)
+            hi = self.ranges[len(self.ranges)-1].end
+            return(lo, hi)
         else:
-            return (0,0)
+            return(0, 0)
 class TimelineEvent:
-    def __init__ (self, name = ''):
+    def __init__(self, name = ''):
         self.name = name
         self.events = []
-    def __search (self, key):
+    def __search(self, key):
         l = 0
-        u = len (self.events)-1
+        u = len(self.events)-1
         while l <= u:
-            i = int ((l+u)/2)
+            i = int((l + u) / 2)
             if key == self.events[i].at:
                 return i
             elif key < self.events[i].at:
@@ -99,160 +99,160 @@
                 # key > self.events[i].at
                 l = i + 1
         return l
-    def add_event (self, event):
-        self.events.append (event)
-    def get_events (self, start, end):
-        s = self.__search (start)
-        e = self.__search (end)
-        return self.events[s:e+1]
-    def get_events_bounds (self, start, end):
-        s = self.__search (start)
-        e = self.__search (end)
-        return (s, e+1)
-    def sort (self):
-        self.events.sort (events_cmp)
-    def get_bounds (self):
-        if len (self.events) > 0:
+    def add_event(self, event):
+        self.events.append(event)
+    def get_events(self, start, end):
+        s = self.__search(start)
+        e = self.__search(end)
+        return self.events[s:e + 1]
+    def get_events_bounds(self, start, end):
+        s = self.__search(start)
+        e = self.__search(end)
+        return(s, e + 1)
+    def sort(self):
+        self.events.sort(events_cmp)
+    def get_bounds(self):
+        if len(self.events) > 0:
             lo = self.events[0].at
             hi = self.events[-1].at
-            return (lo,hi)
+            return(lo, hi)
         else:
-            return (0,0)
+            return(0, 0)
 
 class Timeline:
-    def __init__ (self, name = ''):
+    def __init__(self, name = ''):
         self.ranges = []
         self.event_str = []
         self.event_int = []
         self.name = name
-    def get_range (self, name):
+    def get_range(self, name):
         for range in self.ranges:
             if range.name == name:
                 return range
-        timeline = TimelineDataRange (name)
-        self.ranges.append (timeline)
+        timeline = TimelineDataRange(name)
+        self.ranges.append(timeline)
         return timeline
-    def get_event_str (self, name):
+    def get_event_str(self, name):
         for event_str in self.event_str:
             if event_str.name == name:
                 return event_str
-        timeline = TimelineEvent (name)
-        self.event_str.append (timeline)
+        timeline = TimelineEvent(name)
+        self.event_str.append(timeline)
         return timeline
-    def get_event_int (self, name):
+    def get_event_int(self, name):
         for event_int in self.event_int:
             if event_int.name == name:
                 return event_int
-        timeline = TimelineEvent (name)
-        self.event_int.append (timeline)
+        timeline = TimelineEvent(name)
+        self.event_int.append(timeline)
         return timeline
-    def get_ranges (self):
+    def get_ranges(self):
         return self.ranges
-    def get_events_str (self):
+    def get_events_str(self):
         return self.event_str
-    def get_events_int (self):
+    def get_events_int(self):
         return self.event_int
-    def sort (self):
+    def sort(self):
         for range in self.ranges:
-            range.sort ()
+            range.sort()
         for event in self.event_int:
-            event.sort ()
+            event.sort()
         for event in self.event_str:
-            event.sort ()
-    def get_bounds (self):
+            event.sort()
+    def get_bounds(self):
         lo = 0
         hi = 0
         for range in self.ranges:
-            (range_lo, range_hi) = range.get_bounds ()
+            (range_lo, range_hi) = range.get_bounds()
             if range_lo < lo:
                 lo = range_lo
             if range_hi > hi:
                 hi = range_hi
         for event_str in self.event_str:
-            (ev_lo, ev_hi) = event_str.get_bounds ()
+            (ev_lo, ev_hi) = event_str.get_bounds()
             if ev_lo < lo:
                 lo = ev_lo
             if ev_hi > hi:
                 hi = ev_hi
         for event_int in self.event_int:
-            (ev_lo, ev_hi) = event_int.get_bounds ()
+            (ev_lo, ev_hi) = event_int.get_bounds()
             if ev_lo < lo:
                 lo = ev_lo
             if ev_hi > hi:
                 hi = ev_hi
-        return (lo, hi)
+        return(lo, hi)
 class Timelines:
-    def __init__ (self):
+    def __init__(self):
         self.timelines = []
-    def get (self, name):
+    def get(self, name):
         for timeline in self.timelines:
             if timeline.name == name:
                 return timeline
-        timeline = Timeline (name)
-        self.timelines.append (timeline)
+        timeline = Timeline(name)
+        self.timelines.append(timeline)
         return timeline
-    def get_all (self):
+    def get_all(self):
         return self.timelines
-    def sort (self):
+    def sort(self):
         for timeline in self.timelines:
-            timeline.sort ()
-    def get_bounds (self):
+            timeline.sort()
+    def get_bounds(self):
         lo = 0
         hi = 0
         for timeline in self.timelines:
-            (t_lo, t_hi) = timeline.get_bounds ()
+            (t_lo, t_hi) = timeline.get_bounds()
             if t_lo < lo:
                 lo = t_lo
             if t_hi > hi:
                 hi = t_hi
-        return (lo, hi)
-    def get_all_range_values (self):
+        return(lo, hi)
+    def get_all_range_values(self):
         range_values = {}
         for timeline in self.timelines:
-            for ranges in timeline.get_ranges ():
-                for ran in ranges.get_all ():
+            for ranges in timeline.get_ranges():
+                for ran in ranges.get_all():
                     range_values[ran.value] = 1
-        return range_values.keys ()
+        return range_values.keys()
 class Color:
-    def __init__ (self, r = 0.0, g = 0.0, b = 0.0):
+    def __init__(self, r = 0.0, g = 0.0, b = 0.0):
         self.r = r
         self.g = g
         self.b = b
-    def set (self, r, g, b):
+    def set(self, r, g, b):
         self.r = r
         self.g = g
         self.b = b
 class Colors:
     # XXX add more
-    default_colors = [Color (1,0,0), Color (0,1,0), Color (0,0,1),Color (1,1,0), Color(1,0,1), Color (0,1,1)]
-    def __init__ (self):
+    default_colors = [Color(1, 0, 0), Color(0, 1, 0), Color(0, 0, 1), Color(1, 1, 0), Color(1, 0, 1), Color(0, 1, 1)]
+    def __init__(self):
         self.__colors = {}
-    def add (self, name, color):
+    def add(self, name, color):
         self.__colors[name] = color
-    def lookup (self, name):
-        if not self.__colors.has_key (name):
-            self.add (name, self.default_colors.pop ())
+    def lookup(self, name):
+        if not self.__colors.has_key(name):
+            self.add(name, self.default_colors.pop())
         return self.__colors.get(name)
 
 
 class TopLegendRenderer:
-    def __init__ (self):
+    def __init__(self):
         self.__padding = 10
-    def set_padding (self, padding):
+    def set_padding(self, padding):
         self.__padding = padding
-    def set_legends (self, legends, colors):
+    def set_legends(self, legends, colors):
         self.__legends = legends
         self.__colors = colors
-    def layout (self, width):
+    def layout(self, width):
         self.__width = width
-        surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 1,1)
+        surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 1, 1)
         ctx = cairo.Context(surface)
         line_height = 0
         total_height = self.__padding
         line_used = self.__padding
         for legend in self.__legends:
-            (t_width, t_height) = ctx.text_extents (legend)[2:4]
-            item_width = self.__padding +  self.__padding + t_width +  self.__padding
+            (t_width, t_height) = ctx.text_extents(legend)[2:4]
+            item_width = self.__padding + self.__padding + t_width + self.__padding
             item_height = t_height + self.__padding
             if item_height > line_height:
                 line_height = item_height
@@ -265,16 +265,16 @@
         total_height += line_height
         self.__height = total_height
 
-    def get_height (self):
+    def get_height(self):
         return self.__height
-    def draw (self, ctx):
+    def draw(self, ctx):
         i = 0
         line_height = 0
         total_height = self.__padding
         line_used = self.__padding
         for legend in self.__legends:
-            (t_width, t_height) = ctx.text_extents (legend)[2:4]
-            item_width = self.__padding +  self.__padding + t_width +  self.__padding
+            (t_width, t_height) = ctx.text_extents(legend)[2:4]
+            item_width = self.__padding + self.__padding + t_width + self.__padding
             item_height = t_height + self.__padding
             if item_height > line_height:
                 line_height = item_height
@@ -284,39 +284,39 @@
             else:
                 line_used += item_width
             x = line_used - item_width
-            ctx.rectangle (x, total_height, self.__padding, self.__padding)
-            ctx.set_source_rgb (0,0,0)
-            ctx.set_line_width (2)
-            ctx.stroke_preserve ()
-            ctx.set_source_rgb (self.__colors[i].r,
-                                self.__colors[i].g,
-                                self.__colors[i].b)
-            ctx.fill ()
-            ctx.move_to (x+self.__padding*2, total_height+t_height)
-            ctx.set_source_rgb (0,0,0)
-            ctx.show_text (legend)
+            ctx.rectangle(x, total_height, self.__padding, self.__padding)
+            ctx.set_source_rgb(0, 0, 0)
+            ctx.set_line_width(2)
+            ctx.stroke_preserve()
+            ctx.set_source_rgb(self.__colors[i].r, 
+                               self.__colors[i].g, 
+                               self.__colors[i].b)
+            ctx.fill()
+            ctx.move_to(x + self.__padding*2, total_height + t_height)
+            ctx.set_source_rgb(0, 0, 0)
+            ctx.show_text(legend)
             i += 1
 
         return
 
 class TimelinesRenderer:
-    def __init__ (self):
+    def __init__(self):
         self.padding = 10
         return
-    def get_height (self):
+    def get_height(self):
         return self.height
-    def set_timelines (self, timelines, colors):
+    def set_timelines(self, timelines, colors):
         self.timelines = timelines
         self.colors = colors
-    def set_render_range (self, start, end):
+    def set_render_range(self, start, end):
         self.start = start
         self.end = end
-    def get_data_x_start (self):
-        return self.padding / 2 + self.left_width + self.padding + self.right_width + self.padding/2
-    def layout (self, width):
-        surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 1,1)
+    def get_data_x_start(self):
+        return self.padding / 2 + self.left_width + self.padding + self.right_width + self.padding / 2
+    def layout(self, width):
+        surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 1, 1)
         ctx = cairo.Context(surface)
-        max_text_height = ctx.text_extents ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcedefghijklmnopqrstuvwxyz0123456789")[3]
+        max_text_height = ctx.text_extents("ABCDEFGHIJKLMNOPQRSTUVWXYZabcedefghijklmnopqrstuvwxyz0123456789")[3]
 
         left_width = 0
         right_width = 0
@@ -324,21 +324,21 @@
         range_n = 0
         eventint_n = 0
         eventstr_n = 0
-        for timeline in self.timelines.get_all ():
+        for timeline in self.timelines.get_all():
             left_n_lines += 1
-            t_width = ctx.text_extents (timeline.name)[2]
-            left_width = max (left_width, t_width)
-            for rang in timeline.get_ranges ():
-                t_width = ctx.text_extents (rang.name)[2]
-                right_width = max (right_width, t_width)
+            t_width = ctx.text_extents(timeline.name)[2]
+            left_width = max(left_width, t_width)
+            for rang in timeline.get_ranges():
+                t_width = ctx.text_extents(rang.name)[2]
+                right_width = max(right_width, t_width)
                 range_n += 1
-            for events_int in timeline.get_events_int ():
-                t_width = ctx.text_extents (events_int.name)[2]
-                right_width = max (right_width, t_width)
+            for events_int in timeline.get_events_int():
+                t_width = ctx.text_extents(events_int.name)[2]
+                right_width = max(right_width, t_width)
                 eventint_n += 1
-            for events_str in timeline.get_events_str ():
-                t_width = ctx.text_extents (events_str.name)[2]
-                right_width = max (right_width, t_width)
+            for events_str in timeline.get_events_str():
+                t_width = ctx.text_extents(events_str.name)[2]
+                right_width = max(right_width, t_width)
                 eventstr_n += 1
 
         left_height = left_n_lines * max_text_height + (left_n_lines - 1) * self.padding
@@ -347,132 +347,132 @@
         right_data_height = (eventint_n + eventstr_n) * (max_text_height + 5) + range_n * 10
         right_data_height += (right_n_lines - 1) * self.padding
 
-        height = max (left_height, right_height)
-        height = max (height, right_data_height)
+        height = max(left_height, right_height)
+        height = max(height, right_data_height)
 
         self.left_width = left_width
         self.right_width = right_width
         self.max_text_height = max_text_height
         self.width = width
         self.height = height + self.padding
-    def draw_line (self, ctx, x, y, width, height):
-        ctx.move_to (x, y)
-        ctx.rel_line_to (width, height)
-        ctx.close_path ()
-        ctx.set_operator (cairo.OPERATOR_SOURCE)
-        ctx.set_line_width (1.0)
-        ctx.set_source_rgb (0,0,0)
-        ctx.stroke ()
-    def draw_events (self, ctx, events, x, y, width, height):
+    def draw_line(self, ctx, x, y, width, height):
+        ctx.move_to(x, y)
+        ctx.rel_line_to(width, height)
+        ctx.close_path()
+        ctx.set_operator(cairo.OPERATOR_SOURCE)
+        ctx.set_line_width(1.0)
+        ctx.set_source_rgb(0, 0, 0)
+        ctx.stroke()
+    def draw_events(self, ctx, events, x, y, width, height):
         if (self.grey_background % 2) == 0:
-            ctx.rectangle (x, y-self.padding/2,
-                           width, height+self.padding)
-            ctx.set_source_rgb (0.9,0.9,0.9)
-            ctx.fill ()
-        last_x_drawn = int (x)
-        (lo, hi) = events.get_events_bounds (self.start, self.end)
+            ctx.rectangle(x, y - self.padding / 2, 
+                          width, height + self.padding)
+            ctx.set_source_rgb(0.9, 0.9, 0.9)
+            ctx.fill()
+        last_x_drawn = int(x)
+        (lo, hi) = events.get_events_bounds(self.start, self.end)
         for event in events.events[lo:hi]:
-            real_x = int (x + (event.at - self.start) * width / (self.end - self.start))
-            if real_x > last_x_drawn+2:
-                ctx.rectangle (real_x, y, 1, 1)
-                ctx.set_source_rgb (1,0,0)
-                ctx.stroke ()
-                ctx.move_to (real_x, y+self.max_text_height)
-                ctx.set_source_rgb (0,0,0)
-                ctx.show_text (str (event.value))
+            real_x = int(x + (event.at - self.start) * width / (self.end - self.start))
+            if real_x > last_x_drawn + 2:
+                ctx.rectangle(real_x, y, 1, 1)
+                ctx.set_source_rgb(1, 0, 0)
+                ctx.stroke()
+                ctx.move_to(real_x, y + self.max_text_height)
+                ctx.set_source_rgb(0, 0, 0)
+                ctx.show_text(str(event.value))
                 last_x_drawn = real_x
         self.grey_background += 1
-    def draw_ranges (self, ctx, ranges, x, y, width, height):
+    def draw_ranges(self, ctx, ranges, x, y, width, height):
         if (self.grey_background % 2) == 0:
-            ctx.rectangle (x, y-self.padding/2,
-                           width, height+self.padding)
-            ctx.set_source_rgb (0.9,0.9,0.9)
-            ctx.fill ()
-        last_x_drawn = int (x-1)
-        (lo, hi) = ranges.get_ranges_bounds (self.start, self.end)
+            ctx.rectangle(x, y - self.padding / 2, 
+                          width, height + self.padding)
+            ctx.set_source_rgb(0.9, 0.9, 0.9)
+            ctx.fill()
+        last_x_drawn = int(x - 1)
+        (lo, hi) = ranges.get_ranges_bounds(self.start, self.end)
         for data_range in ranges.ranges[lo:hi]:
-            s = max (data_range.start, self.start)
-            e = min (data_range.end, self.end)
-            x_start = int (x + (s - self.start) * width / (self.end - self.start))
-            x_end = int (x + (e - self.start) * width / (self.end - self.start))
+            s = max(data_range.start, self.start)
+            e = min(data_range.end, self.end)
+            x_start = int(x + (s - self.start) * width / (self.end - self.start))
+            x_end = int(x + (e - self.start) * width / (self.end - self.start))
             if x_end > last_x_drawn:
-                ctx.rectangle (x_start, y, x_end - x_start, 10)
-                ctx.set_source_rgb (0,0,0)
-                ctx.stroke_preserve ()
-                color = self.colors.lookup (data_range.value)
-                ctx.set_source_rgb (color.r, color.g, color.b)
-                ctx.fill ()
+                ctx.rectangle(x_start, y, x_end - x_start, 10)
+                ctx.set_source_rgb(0, 0, 0)
+                ctx.stroke_preserve()
+                color = self.colors.lookup(data_range.value)
+                ctx.set_source_rgb(color.r, color.g, color.b)
+                ctx.fill()
                 last_x_drawn = x_end
 
         self.grey_background += 1
 
-    def draw (self, ctx):
+    def draw(self, ctx):
         timeline_top = 0
         top_y = self.padding / 2
         left_x_start = self.padding / 2
         left_x_end = left_x_start + self.left_width
         right_x_start = left_x_end + self.padding
         right_x_end = right_x_start + self.right_width
-        data_x_start = right_x_end + self.padding /2
+        data_x_start = right_x_end + self.padding / 2
         data_x_end = self.width
         data_width = data_x_end - data_x_start
         cur_y = top_y
-        self.draw_line (ctx, 0, 0, self.width, 0)
+        self.draw_line(ctx, 0, 0, self.width, 0)
         self.grey_background = 1
-        for timeline in self.timelines.get_all ():
-            (y_bearing,t_width,t_height) = ctx.text_extents (timeline.name)[1:4]
-            ctx.move_to (left_x_start, cur_y + self.max_text_height - (t_height+y_bearing))
-            ctx.show_text (timeline.name);
-            for events_int in timeline.get_events_int ():
-                (y_bearing, t_width, t_height) = ctx.text_extents (events_int.name)[1:4]
-                ctx.move_to (right_x_start, cur_y + self.max_text_height - (t_height+y_bearing))
-                ctx.show_text (events_int.name)
-                self.draw_events (ctx, events_int, data_x_start, cur_y, data_width, self.max_text_height+5)
+        for timeline in self.timelines.get_all():
+            (y_bearing, t_width, t_height) = ctx.text_extents(timeline.name)[1:4]
+            ctx.move_to(left_x_start, cur_y + self.max_text_height - (t_height + y_bearing))
+            ctx.show_text(timeline.name);
+            for events_int in timeline.get_events_int():
+                (y_bearing, t_width, t_height) = ctx.text_extents(events_int.name)[1:4]
+                ctx.move_to(right_x_start, cur_y + self.max_text_height - (t_height + y_bearing))
+                ctx.show_text(events_int.name)
+                self.draw_events(ctx, events_int, data_x_start, cur_y, data_width, self.max_text_height + 5)
                 cur_y += self.max_text_height + 5 + self.padding
-                self.draw_line (ctx, right_x_start-self.padding/2, cur_y - self.padding / 2,
-                                self.right_width + self.padding, 0)
+                self.draw_line(ctx, right_x_start - self.padding / 2, cur_y - self.padding / 2, 
+                               self.right_width + self.padding, 0)
 
-            for events_str in timeline.get_events_str ():
-                (y_bearing, t_width, t_height) = ctx.text_extents (events_str.name)[1:4]
-                ctx.move_to (right_x_start, cur_y + self.max_text_height - (t_height+y_bearing))
-                ctx.show_text (events_str.name)
-                self.draw_events (ctx, events_str, data_x_start, cur_y, data_width, self.max_text_height+5)
+            for events_str in timeline.get_events_str():
+                (y_bearing, t_width, t_height) = ctx.text_extents(events_str.name)[1:4]
+                ctx.move_to(right_x_start, cur_y + self.max_text_height - (t_height + y_bearing))
+                ctx.show_text(events_str.name)
+                self.draw_events(ctx, events_str, data_x_start, cur_y, data_width, self.max_text_height + 5)
                 cur_y += self.max_text_height + 5 + self.padding
-                self.draw_line (ctx, right_x_start-self.padding/2, cur_y - self.padding / 2,
-                                self.right_width + self.padding, 0)
-            for ranges in timeline.get_ranges ():
-                (y_bearing, t_width, t_height) = ctx.text_extents (ranges.name)[1:4]
-                ctx.move_to (right_x_start, cur_y + self.max_text_height - (t_height+y_bearing))
-                ctx.show_text (ranges.name)
-                self.draw_ranges (ctx, ranges, data_x_start, cur_y, data_width, 10)
+                self.draw_line(ctx, right_x_start - self.padding / 2, cur_y - self.padding / 2, 
+                               self.right_width + self.padding, 0)
+            for ranges in timeline.get_ranges():
+                (y_bearing, t_width, t_height) = ctx.text_extents(ranges.name)[1:4]
+                ctx.move_to(right_x_start, cur_y + self.max_text_height - (t_height + y_bearing))
+                ctx.show_text(ranges.name)
+                self.draw_ranges(ctx, ranges, data_x_start, cur_y, data_width, 10)
                 cur_y += self.max_text_height + self.padding
-                self.draw_line (ctx, right_x_start-self.padding/2, cur_y - self.padding / 2,
-                                self.right_width + self.padding, 0)
-            self.draw_line (ctx, 0, cur_y - self.padding / 2,
-                            self.width, 0)
+                self.draw_line(ctx, right_x_start - self.padding / 2, cur_y - self.padding / 2, 
+                               self.right_width + self.padding, 0)
+            self.draw_line(ctx, 0, cur_y - self.padding / 2, 
+                           self.width, 0)
         bot_y = cur_y - self.padding / 2
-        self.draw_line (ctx, left_x_end+self.padding/2, 0,
-                        0, bot_y)
-        self.draw_line (ctx, right_x_end+self.padding/2, 0,
-                        0, bot_y)
+        self.draw_line(ctx, left_x_end + self.padding / 2, 0, 
+                       0, bot_y)
+        self.draw_line(ctx, right_x_end + self.padding / 2, 0, 
+                       0, bot_y)
         return
 
 class ScaleRenderer:
-    def __init__ (self):
+    def __init__(self):
         self.__top = 0
         return
-    def set_bounds (self, lo, hi):
+    def set_bounds(self, lo, hi):
         self.__lo = lo
         self.__hi = hi
-    def get_position (self, x):
+    def get_position(self, x):
         real_x = (x - self.__lo ) * self.__width / (self.__hi - self.__lo)
         return real_x
-    def set_top (self):
+    def set_top(self):
         self.__top = 1
-    def set_bot (self):
+    def set_bot(self):
         self.__top = 0
-    def layout (self, width):
-        surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 1,1)
+    def layout(self, width):
+        surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 1, 1)
         ctx = cairo.Context(surface)
 
         # calculate scale delta
@@ -482,7 +482,7 @@
             closest *= 10
         if (data_delta / closest) == 0:
             delta = closest
-        elif (data_delta / closest) == 1:
+        elif(data_delta / closest) == 1:
             delta = closest / 10
         else:
             delta = closest
@@ -493,14 +493,14 @@
         self.__width = width
 
         # calculate text height
-        max_text_height = ctx.text_extents ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcedefghijklmnopqrstuvwxyz0123456789")[3]
+        max_text_height = ctx.text_extents("ABCDEFGHIJKLMNOPQRSTUVWXYZabcedefghijklmnopqrstuvwxyz0123456789")[3]
         self.max_text_height = max_text_height
         height = max_text_height + 10
         self.__height = height
 
-    def get_height (self):
+    def get_height(self):
         return self.__height
-    def draw (self, ctx):
+    def draw(self, ctx):
         delta = self.__delta
         start = self.__lo - (self.__lo % delta) + delta
         end = self.__hi - (self.__hi % delta)
@@ -510,276 +510,276 @@
         else:
             s = 1
         # print scale points
-        ctx.set_source_rgb (0, 0, 0)
-        ctx.set_line_width (1.0)
-        ticks = range (int (start), int (end + delta), int (delta))
+        ctx.set_source_rgb(0, 0, 0)
+        ctx.set_line_width(1.0)
+        ticks = range(int(start), int(end + delta), int(delta))
         for x in ticks:
             real_x = (x - self.__lo ) * self.__width / (self.__hi - self.__lo)
-            ctx.move_to (real_x, 0)
-            ctx.line_to (real_x, 5*s)
-            ctx.close_path ()
-            ctx.stroke ()
-            (t_y_bearing, t_width, t_height) = ctx.text_extents (str (x))[1:4]
+            ctx.move_to(real_x, 0)
+            ctx.line_to(real_x, 5*s)
+            ctx.close_path()
+            ctx.stroke()
+            (t_y_bearing, t_width, t_height) = ctx.text_extents(str(x))[1:4]
             if self.__top:
                 text_delta = t_height + t_y_bearing
             else:
                 text_delta = -t_y_bearing
-            ctx.move_to (real_x - t_width/2, (5 + 5 + text_delta)*s)
-            ctx.show_text (str (x))
+            ctx.move_to(real_x - t_width / 2, (5 + 5 + text_delta)*s)
+            ctx.show_text(str(x))
         # draw subticks
         delta /= 10
         if delta > 0:
             start = self.__lo - (self.__lo % delta) + delta
             end = self.__hi - (self.__hi % delta)
-            for x in range (int (start), int (end + delta), int (delta)):
+            for x in range(int(start), int(end + delta), int(delta)):
                 real_x = (x - self.__lo ) * self.__width / (self.__hi - self.__lo)
-                ctx.move_to (real_x, 0)
-                ctx.line_to (real_x, 3*s)
-                ctx.close_path ()
-                ctx.stroke ()
+                ctx.move_to(real_x, 0)
+                ctx.line_to(real_x, 3*s)
+                ctx.close_path()
+                ctx.stroke()
 
 
 
 class GraphicRenderer:
     def __init__(self, start, end):
-        self.__start = float (start)
-        self.__end = float (end)
-        self.__mid_scale = ScaleRenderer ()
-        self.__mid_scale.set_top ()
-        self.__bot_scale = ScaleRenderer ()
-        self.__bot_scale.set_bounds (start, end)
-        self.__bot_scale.set_bot ()
+        self.__start = float(start)
+        self.__end = float(end)
+        self.__mid_scale = ScaleRenderer()
+        self.__mid_scale.set_top()
+        self.__bot_scale = ScaleRenderer()
+        self.__bot_scale.set_bounds(start, end)
+        self.__bot_scale.set_bot()
         self.__width = 1
         self.__height = 1
-    def get_width (self):
+    def get_width(self):
         return self.__width
-    def get_height (self):
+    def get_height(self):
         return self.__height
     # return x, y, width, height
-    def get_data_rectangle (self):
-        y_start = self.__top_legend.get_height ()
-        x_start = self.__data.get_data_x_start ()
-        return (x_start, y_start, self.__width - x_start, self.__data.get_height ())
-    def scale_data (self, x):
-        x_start = self.__data.get_data_x_start ()
+    def get_data_rectangle(self):
+        y_start = self.__top_legend.get_height()
+        x_start = self.__data.get_data_x_start()
+        return(x_start, y_start, self.__width - x_start, self.__data.get_height())
+    def scale_data(self, x):
+        x_start = self.__data.get_data_x_start()
         x_scaled = x / (self.__width - x_start) * (self.__r_end - self.__r_start)
         return x_scaled
     # return x, y, width, height
-    def get_selection_rectangle (self):
-        y_start = self.__top_legend.get_height () + self.__data.get_height () + self.__mid_scale.get_height () + 20
-        y_height = self.__bot_scale.get_height () + 20
-        x_start = self.__bot_scale.get_position (self.__r_start)
-        x_end = self.__bot_scale.get_position (self.__r_end)
-        return (x_start,y_start,x_end-x_start,y_height)
-    def scale_selection (self, x):
+    def get_selection_rectangle(self):
+        y_start = self.__top_legend.get_height() + self.__data.get_height() + self.__mid_scale.get_height() + 20
+        y_height = self.__bot_scale.get_height() + 20
+        x_start = self.__bot_scale.get_position(self.__r_start)
+        x_end = self.__bot_scale.get_position(self.__r_end)
+        return(x_start, y_start, x_end - x_start, y_height)
+    def scale_selection(self, x):
         x_scaled = x / self.__width * (self.__end - self.__start)
         return x_scaled
-    def set_range (self,start, end):
-        s = min (start, end)
-        e = max (start, end)
-        start = max (self.__start, s)
-        end = min (self.__end, e)
+    def set_range(self, start, end):
+        s = min(start, end)
+        e = max(start, end)
+        start = max(self.__start, s)
+        end = min(self.__end, e)
         self.__r_start = start
         self.__r_end = end
-        self.__data.set_render_range (start, end)
-        self.__mid_scale.set_bounds (start, end)
-        self.layout (self.__width, self.__height)
-    def get_range (self):
-        return (self.__r_start, self.__r_end)
-    def set_data (self, data):
+        self.__data.set_render_range(start, end)
+        self.__mid_scale.set_bounds(start, end)
+        self.layout(self.__width, self.__height)
+    def get_range(self):
+        return(self.__r_start, self.__r_end)
+    def set_data(self, data):
         self.__data = data
-    def set_top_legend (self, top_legend):
+    def set_top_legend(self, top_legend):
         self.__top_legend = top_legend
-    def layout (self, width, height):
+    def layout(self, width, height):
         self.__width = width
         self.__height = height
-        self.__top_legend.layout (width)
-        top_legend_height = self.__top_legend.get_height ()
-        self.__data.layout (width)
-        self.__mid_scale.layout (width - self.__data.get_data_x_start ())
-        self.__bot_scale.layout (width)
+        self.__top_legend.layout(width)
+        top_legend_height = self.__top_legend.get_height()
+        self.__data.layout(width)
+        self.__mid_scale.layout(width - self.__data.get_data_x_start())
+        self.__bot_scale.layout(width)
         return
-    def __x_pixel (self, x, width):
+    def __x_pixel(self, x, width):
         new_x = (x - self.__start) * width / (self.__end - self.__start)
         return new_x
 
-    def draw (self, ctx):
+    def draw(self, ctx):
         # default background is white
-        ctx.save ()
-        ctx.set_source_rgb (1, 1, 1)
-        ctx.set_operator (cairo.OPERATOR_SOURCE)
-        ctx.rectangle (0,0,self.__width,self.__height)
-        ctx.fill ()
+        ctx.save()
+        ctx.set_source_rgb(1, 1, 1)
+        ctx.set_operator(cairo.OPERATOR_SOURCE)
+        ctx.rectangle(0, 0, self.__width, self.__height)
+        ctx.fill()
 
         # top legend
-        ctx.save ()
-        self.__top_legend.draw (ctx)
-        top_legend_height = self.__top_legend.get_height ()
-        ctx.restore ()
+        ctx.save()
+        self.__top_legend.draw(ctx)
+        top_legend_height = self.__top_legend.get_height()
+        ctx.restore()
 
         # separation line
-        ctx.move_to (0, top_legend_height)
-        ctx.line_to (self.__width, top_legend_height)
-        ctx.close_path ()
-        ctx.set_line_width (2)
-        ctx.set_source_rgb (0,0,0)
-        ctx.stroke ()
+        ctx.move_to(0, top_legend_height)
+        ctx.line_to(self.__width, top_legend_height)
+        ctx.close_path()
+        ctx.set_line_width(2)
+        ctx.set_source_rgb(0, 0, 0)
+        ctx.stroke()
 
         # data
-        ctx.save ()
-        ctx.translate (0,
+        ctx.save()
+        ctx.translate(0, 
                        top_legend_height)
-        self.__data.draw (ctx)
-        ctx.restore ()
+        self.__data.draw(ctx)
+        ctx.restore()
 
         # scale below data
-        ctx.save ()
-        ctx.translate (self.__data.get_data_x_start (),
-                       top_legend_height + self.__data.get_height () + self.__mid_scale.get_height ())
-        self.__mid_scale.draw (ctx)
-        ctx.restore ()
+        ctx.save()
+        ctx.translate(self.__data.get_data_x_start(), 
+                       top_legend_height + self.__data.get_height() + self.__mid_scale.get_height())
+        self.__mid_scale.draw(ctx)
+        ctx.restore()
 
-        height_used = top_legend_height + self.__data.get_height () + self.__mid_scale.get_height ()
+        height_used = top_legend_height + self.__data.get_height() + self.__mid_scale.get_height()
 
         # separation between scale and left pane
-        ctx.move_to (self.__data.get_data_x_start (), height_used)
-        ctx.rel_line_to (0, -self.__mid_scale.get_height ())
-        ctx.close_path ()
-        ctx.set_source_rgb (0,0,0)
-        ctx.set_line_width (2)
-        ctx.stroke ()
+        ctx.move_to(self.__data.get_data_x_start(), height_used)
+        ctx.rel_line_to(0, -self.__mid_scale.get_height())
+        ctx.close_path()
+        ctx.set_source_rgb(0, 0, 0)
+        ctx.set_line_width(2)
+        ctx.stroke()
 
         # separation below scale
-        ctx.move_to (0, height_used)
-        ctx.line_to (self.__width, height_used)
-        ctx.close_path ()
-        ctx.set_line_width (2)
-        ctx.set_source_rgb (0,0,0)
-        ctx.stroke ()
+        ctx.move_to(0, height_used)
+        ctx.line_to(self.__width, height_used)
+        ctx.close_path()
+        ctx.set_line_width(2)
+        ctx.set_source_rgb(0, 0, 0)
+        ctx.stroke()
 
-        select_start = self.__bot_scale.get_position (self.__r_start)
-        select_end = self.__bot_scale.get_position (self.__r_end)
+        select_start = self.__bot_scale.get_position(self.__r_start)
+        select_end = self.__bot_scale.get_position(self.__r_end)
 
         # left connection between top scale and bottom scale
-        ctx.move_to (0, height_used);
-        ctx.line_to (self.__data.get_data_x_start (), height_used)
-        ctx.line_to (select_start, height_used + 20)
-        ctx.line_to (0, height_used + 20)
-        ctx.line_to (0,height_used)
-        ctx.set_source_rgb (0,0,0)
-        ctx.set_line_width (1)
-        ctx.stroke_preserve ()
-        ctx.set_source_rgb (0.9,0.9,0.9)
-        ctx.fill ()
+        ctx.move_to(0, height_used);
+        ctx.line_to(self.__data.get_data_x_start(), height_used)
+        ctx.line_to(select_start, height_used + 20)
+        ctx.line_to(0, height_used + 20)
+        ctx.line_to(0, height_used)
+        ctx.set_source_rgb(0, 0, 0)
+        ctx.set_line_width(1)
+        ctx.stroke_preserve()
+        ctx.set_source_rgb(0.9, 0.9, 0.9)
+        ctx.fill()
 
         # right connection between top scale and bottom scale
-        ctx.move_to (self.__width, height_used)
-        ctx.line_to (self.__width, height_used+20)
-        ctx.line_to (select_end, height_used+20)
-        ctx.line_to (self.__width, height_used)
-        ctx.set_source_rgb (0,0,0)
-        ctx.set_line_width (1)
-        ctx.stroke_preserve ()
-        ctx.set_source_rgb (0.9,0.9,0.9)
-        ctx.fill ()
+        ctx.move_to(self.__width, height_used)
+        ctx.line_to(self.__width, height_used + 20)
+        ctx.line_to(select_end, height_used + 20)
+        ctx.line_to(self.__width, height_used)
+        ctx.set_source_rgb(0, 0, 0)
+        ctx.set_line_width(1)
+        ctx.stroke_preserve()
+        ctx.set_source_rgb(0.9, 0.9, 0.9)
+        ctx.fill()
 
         height_used += 20
 
         # unused area background
-        unused_start = self.__bot_scale.get_position (self.__r_start)
-        unused_end = self.__bot_scale.get_position (self.__r_end)
-        unused_height = self.__bot_scale.get_height () + 20
-        ctx.rectangle (0, height_used,
-                       unused_start,
+        unused_start = self.__bot_scale.get_position(self.__r_start)
+        unused_end = self.__bot_scale.get_position(self.__r_end)
+        unused_height = self.__bot_scale.get_height() + 20
+        ctx.rectangle(0, height_used, 
+                       unused_start, 
                        unused_height)
-        ctx.rectangle (unused_end,
-                       height_used,
-                       self.__width - unused_end,
+        ctx.rectangle(unused_end, 
+                       height_used, 
+                       self.__width - unused_end, 
                        unused_height)
-        ctx.set_source_rgb (0.9,0.9,0.9)
-        ctx.fill ()
+        ctx.set_source_rgb(0.9, 0.9, 0.9)
+        ctx.fill()
 
         # border line around bottom scale
-        ctx.move_to (unused_end, height_used)
-        ctx.line_to (self.__width, height_used)
-        ctx.line_to (self.__width, height_used + unused_height)
-        ctx.line_to (0, height_used + unused_height)
-        ctx.line_to (0, height_used)
-        ctx.line_to (unused_start, height_used)
-        ctx.close_path ()
-        ctx.set_line_width (2)
-        ctx.set_source_rgb (0,0,0)
-        ctx.stroke ()
-        ctx.move_to (unused_start, height_used)
-        ctx.line_to (unused_end, height_used)
-        ctx.close_path ()
-        ctx.set_line_width (1)
-        ctx.set_source_rgb (0.9,0.9,0.9)
-        ctx.stroke ()
+        ctx.move_to(unused_end, height_used)
+        ctx.line_to(self.__width, height_used)
+        ctx.line_to(self.__width, height_used + unused_height)
+        ctx.line_to(0, height_used + unused_height)
+        ctx.line_to(0, height_used)
+        ctx.line_to(unused_start, height_used)
+        ctx.close_path()
+        ctx.set_line_width(2)
+        ctx.set_source_rgb(0, 0, 0)
+        ctx.stroke()
+        ctx.move_to(unused_start, height_used)
+        ctx.line_to(unused_end, height_used)
+        ctx.close_path()
+        ctx.set_line_width(1)
+        ctx.set_source_rgb(0.9, 0.9, 0.9)
+        ctx.stroke()
 
         # unused area dot borders
-        ctx.save ()
-        ctx.move_to (max (unused_start, 2), height_used)
-        ctx.rel_line_to (0,unused_height)
-        ctx.move_to (min (unused_end, self.__width-2), height_used)
-        ctx.rel_line_to (0, unused_height)
-        ctx.set_dash ([5], 0)
-        ctx.set_source_rgb (0,0,0)
-        ctx.set_line_width (1)
-        ctx.stroke ()
-        ctx.restore ()
+        ctx.save()
+        ctx.move_to(max(unused_start, 2), height_used)
+        ctx.rel_line_to(0, unused_height)
+        ctx.move_to(min(unused_end, self.__width - 2), height_used)
+        ctx.rel_line_to(0, unused_height)
+        ctx.set_dash([5], 0)
+        ctx.set_source_rgb(0, 0, 0)
+        ctx.set_line_width(1)
+        ctx.stroke()
+        ctx.restore()
 
         # bottom scale
-        ctx.save ()
-        ctx.translate (0, height_used)
-        self.__bot_scale.draw (ctx)
-        ctx.restore ()
+        ctx.save()
+        ctx.translate(0, height_used)
+        self.__bot_scale.draw(ctx)
+        ctx.restore()
 
-class GtkGraphicRenderer (gtk.DrawingArea):
-    def __init__ (self, data):
-        super (GtkGraphicRenderer, self).__init__ ()
+class GtkGraphicRenderer(gtk.DrawingArea):
+    def __init__(self, data):
+        super(GtkGraphicRenderer, self).__init__()
         self.__data = data
         self.__moving_left = False
         self.__moving_right = False
         self.__moving_both = False
         self.__moving_top = False
         self.__force_full_redraw = True
-        self.add_events (gtk.gdk.POINTER_MOTION_MASK)
-        self.add_events (gtk.gdk.BUTTON_PRESS_MASK)
-        self.add_events (gtk.gdk.BUTTON_RELEASE_MASK)
-        self.connect ("expose_event", self.expose)
-        self.connect ('size-allocate', self.size_allocate)
-        self.connect ('motion-notify-event', self.motion_notify)
-        self.connect ('button-press-event', self.button_press)
-        self.connect ('button-release-event', self.button_release)
-    def set_smaller_zoom (self):
-        (start, end) = self.__data.get_range ()
-        self.__data.set_range (start, start+(end-start)*2)
+        self.add_events(gtk.gdk.POINTER_MOTION_MASK)
+        self.add_events(gtk.gdk.BUTTON_PRESS_MASK)
+        self.add_events(gtk.gdk.BUTTON_RELEASE_MASK)
+        self.connect("expose_event", self.expose)
+        self.connect('size-allocate', self.size_allocate)
+        self.connect('motion-notify-event', self.motion_notify)
+        self.connect('button-press-event', self.button_press)
+        self.connect('button-release-event', self.button_release)
+    def set_smaller_zoom(self):
+        (start, end) = self.__data.get_range()
+        self.__data.set_range(start, start + (end - start)*2)
         self.__force_full_redraw = True
-        self.queue_draw ()
-    def set_bigger_zoom (self):
-        (start, end) = self.__data.get_range ()
-        self.__data.set_range (start, start+(end-start)/2)
+        self.queue_draw()
+    def set_bigger_zoom(self):
+        (start, end) = self.__data.get_range()
+        self.__data.set_range(start, start + (end - start) / 2)
         self.__force_full_redraw = True
-        self.queue_draw ()
-    def output_png (self, filename):
-        surface = cairo.ImageSurface(cairo.FORMAT_ARGB32,
-                                     self.__data.get_width (),
-                                     self.__data.get_height ())
-        ctx = cairo.Context (self.__buffer_surface)
-        self.__data.draw (ctx)
-        surface.write_to_png (filename)
-    def button_press (self, widget, event):
-        (x, y, width, height) = self.__data.get_selection_rectangle ()
-        (d_x, d_y, d_width, d_height) = self.__data.get_data_rectangle ()
-        if event.y > y and event.y < y+height:
-            if abs (event.x - x) < 5:
+        self.queue_draw()
+    def output_png(self, filename):
+        surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 
+                                     self.__data.get_width(), 
+                                     self.__data.get_height())
+        ctx = cairo.Context(self.__buffer_surface)
+        self.__data.draw(ctx)
+        surface.write_to_png(filename)
+    def button_press(self, widget, event):
+        (x, y, width, height) = self.__data.get_selection_rectangle()
+        (d_x, d_y, d_width, d_height) = self.__data.get_data_rectangle()
+        if event.y > y and event.y < y + height:
+            if abs(event.x - x) < 5:
                 self.__moving_left = True
                 return True
-            if abs (event.x - (x+width)) < 5:
+            if abs(event.x - (x + width)) < 5:
                 self.__moving_right = True
                 return True
-            if event.x > x and event.x < x+width:
+            if event.x > x and event.x < x + width:
                 self.__moving_both = True
                 self.__moving_both_start = event.x
                 self.__moving_both_cur = event.x
@@ -791,44 +791,44 @@
                 self.__moving_top_cur = event.x
                 return True
         return False
-    def button_release (self, widget, event):
+    def button_release(self, widget, event):
         if self.__moving_left:
             self.__moving_left = False
-            left = self.__data.scale_selection (self.__moving_left_cur)
-            right = self.__data.get_range ()[1]
-            self.__data.set_range (left, right)
+            left = self.__data.scale_selection(self.__moving_left_cur)
+            right = self.__data.get_range()[1]
+            self.__data.set_range(left, right)
             self.__force_full_redraw = True
-            self.queue_draw ()
+            self.queue_draw()
             return True
         if self.__moving_right:
             self.__moving_right = False
-            right = self.__data.scale_selection (self.__moving_right_cur)
-            left = self.__data.get_range ()[0]
-            self.__data.set_range (left, right)
+            right = self.__data.scale_selection(self.__moving_right_cur)
+            left = self.__data.get_range()[0]
+            self.__data.set_range(left, right)
             self.__force_full_redraw = True
-            self.queue_draw ()
+            self.queue_draw()
             return True
         if self.__moving_both:
             self.__moving_both = False
-            delta = self.__data.scale_selection (self.__moving_both_cur - self.__moving_both_start)
-            (left, right) = self.__data.get_range ()
-            self.__data.set_range (left+delta, right+delta)
+            delta = self.__data.scale_selection(self.__moving_both_cur - self.__moving_both_start)
+            (left, right) = self.__data.get_range()
+            self.__data.set_range(left + delta, right + delta)
             self.__force_full_redraw = True
-            self.queue_draw ()
+            self.queue_draw()
             return True
         if self.__moving_top:
             self.__moving_top = False
         return False
-    def motion_notify (self, widget, event):
-        (x, y, width, height) = self.__data.get_selection_rectangle ()
+    def motion_notify(self, widget, event):
+        (x, y, width, height) = self.__data.get_selection_rectangle()
         if self.__moving_left:
             if event.x <= 0:
                 self.__moving_left_cur = 0
-            elif event.x >= x+width:
-                self.__moving_left_cur = x+width
+            elif event.x >= x + width:
+                self.__moving_left_cur = x + width
             else:
                 self.__moving_left_cur = event.x
-            self.queue_draw_area (0, int(y), int(self.__width), int(height))
+            self.queue_draw_area(0, int(y), int(self.__width), int(height))
             return True
         if self.__moving_right:
             if event.x >= self.__width:
@@ -837,7 +837,7 @@
                 self.__moving_right_cur = x
             else:
                 self.__moving_right_cur = event.x
-            self.queue_draw_area (0, int(y), int(self.__width), int(height))
+            self.queue_draw_area(0, int(y), int(self.__width), int(height))
             return True
         if self.__moving_both:
             cur_e = self.__width - (x + width - self.__moving_both_start)
@@ -848,207 +848,207 @@
                 self.__moving_both_cur = cur_e
             else:
                 self.__moving_both_cur = event.x
-            self.queue_draw_area (0, int(y), int(self.__width), int(height))
+            self.queue_draw_area(0, int(y), int(self.__width), int(height))
             return True
         if self.__moving_top:
             self.__moving_top_cur = event.x
-            delta = self.__data.scale_data (self.__moving_top_start-self.__moving_top_cur)
-            (left, right) = self.__data.get_range ()
-            self.__data.set_range (left+delta, right+delta)
+            delta = self.__data.scale_data(self.__moving_top_start - self.__moving_top_cur)
+            (left, right) = self.__data.get_range()
+            self.__data.set_range(left + delta, right + delta)
             self.__force_full_redraw = True
             self.__moving_top_start = event.x
-            self.queue_draw ()
+            self.queue_draw()
             return True
-        (d_x, d_y, d_width, d_height) = self.__data.get_data_rectangle ()
-        if event.y > y and event.y < y+height:
-            if abs (event.x - x) < 5 or abs (event.x - (x+width)) < 5:
-                widget.window.set_cursor (gtk.gdk.Cursor (gtk.gdk.SB_H_DOUBLE_ARROW))
+        (d_x, d_y, d_width, d_height) = self.__data.get_data_rectangle()
+        if event.y > y and event.y < y + height:
+            if abs(event.x - x) < 5 or abs(event.x - (x + width)) < 5:
+                widget.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.SB_H_DOUBLE_ARROW))
                 return True
-            if event.x > x and event.x < x+width:
-                widget.window.set_cursor (gtk.gdk.Cursor (gtk.gdk.FLEUR))
+            if event.x > x and event.x < x + width:
+                widget.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.FLEUR))
                 return True
         if event.y > d_y and event.y < (d_y + d_height):
             if event.x > d_x and event.x < (d_x + d_width):
-                widget.window.set_cursor (gtk.gdk.Cursor (gtk.gdk.FLEUR))
+                widget.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.FLEUR))
                 return True
-        widget.window.set_cursor (None)
+        widget.window.set_cursor(None)
         return False
-    def size_allocate (self, widget, allocation):
+    def size_allocate(self, widget, allocation):
         self.__width = allocation.width
         self.__height = allocation.height
-        self.__data.layout (allocation.width, allocation.height)
+        self.__data.layout(allocation.width, allocation.height)
         self.__force_full_redraw = True
-        self.queue_draw ()
-    def expose (self, widget, event):
+        self.queue_draw()
+    def expose(self, widget, event):
         if self.__force_full_redraw:
-            self.__buffer_surface = cairo.ImageSurface(cairo.FORMAT_ARGB32,
-                                                       self.__data.get_width (),
-                                                       self.__data.get_height ())
+            self.__buffer_surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 
+                                                       self.__data.get_width(), 
+                                                       self.__data.get_height())
             ctx = cairo.Context(self.__buffer_surface)
-            self.__data.draw (ctx)
+            self.__data.draw(ctx)
             self.__force_full_redraw = False
         ctx = widget.window.cairo_create()
-        ctx.rectangle(event.area.x, event.area.y,
+        ctx.rectangle(event.area.x, event.area.y, 
                       event.area.width, event.area.height)
         ctx.clip()
-        ctx.set_source_surface (self.__buffer_surface)
-        ctx.paint ()
-        (x, y, width, height) = self.__data.get_selection_rectangle ()
+        ctx.set_source_surface(self.__buffer_surface)
+        ctx.paint()
+        (x, y, width, height) = self.__data.get_selection_rectangle()
         if self.__moving_left:
-            ctx.move_to (max (self.__moving_left_cur, 2), y)
-            ctx.rel_line_to (0, height)
-            ctx.close_path ()
-            ctx.set_line_width (1)
-            ctx.set_source_rgb (0,0,0)
-            ctx.stroke ()
+            ctx.move_to(max(self.__moving_left_cur, 2), y)
+            ctx.rel_line_to(0, height)
+            ctx.close_path()
+            ctx.set_line_width(1)
+            ctx.set_source_rgb(0, 0, 0)
+            ctx.stroke()
         if self.__moving_right:
-            ctx.move_to (min (self.__moving_right_cur, self.__width-2), y)
-            ctx.rel_line_to (0, height)
-            ctx.close_path ()
-            ctx.set_line_width (1)
-            ctx.set_source_rgb (0,0,0)
-            ctx.stroke ()
+            ctx.move_to(min(self.__moving_right_cur, self.__width - 2), y)
+            ctx.rel_line_to(0, height)
+            ctx.close_path()
+            ctx.set_line_width(1)
+            ctx.set_source_rgb(0, 0, 0)
+            ctx.stroke()
         if self.__moving_both:
             delta_x = self.__moving_both_cur - self.__moving_both_start
             left_x = x + delta_x
-            ctx.move_to (x+delta_x, y)
-            ctx.rel_line_to (0, height)
-            ctx.close_path ()
-            ctx.move_to (x+width+delta_x, y)
-            ctx.rel_line_to (0, height)
-            ctx.close_path ()
-            ctx.set_source_rgb (0,0,0)
-            ctx.set_line_width (1)
-            ctx.stroke ()
+            ctx.move_to(x + delta_x, y)
+            ctx.rel_line_to(0, height)
+            ctx.close_path()
+            ctx.move_to(x + width + delta_x, y)
+            ctx.rel_line_to(0, height)
+            ctx.close_path()
+            ctx.set_source_rgb(0, 0, 0)
+            ctx.set_line_width(1)
+            ctx.stroke()
         return False
 
 class MainWindow:
-    def __init__ (self):
+    def __init__(self):
         return
-    def run (self, graphic):
+    def run(self, graphic):
         window = gtk.Window()
         self.__window = window
-        window.set_default_size (200, 200)
-        vbox = gtk.VBox ()
-        window.add (vbox)
+        window.set_default_size(200, 200)
+        vbox = gtk.VBox()
+        window.add(vbox)
         render = GtkGraphicRenderer(graphic)
         self.__render = render
-        vbox.pack_end (render, True, True, 0)
-        hbox = gtk.HBox ()
-        vbox.pack_start (hbox, False, False, 0)
-        smaller_zoom = gtk.Button ("Zoom Out")
-        smaller_zoom.connect ("clicked", self.__set_smaller_cb)
-        hbox.pack_start (smaller_zoom)
-        bigger_zoom = gtk.Button ("Zoom In")
-        bigger_zoom.connect ("clicked", self.__set_bigger_cb)
-        hbox.pack_start (bigger_zoom)
-        output_png = gtk.Button ("Output Png")
-        output_png.connect ("clicked", self.__output_png_cb)
-        hbox.pack_start (output_png)
+        vbox.pack_end(render, True, True, 0)
+        hbox = gtk.HBox()
+        vbox.pack_start(hbox, False, False, 0)
+        smaller_zoom = gtk.Button("Zoom Out")
+        smaller_zoom.connect("clicked", self.__set_smaller_cb)
+        hbox.pack_start(smaller_zoom)
+        bigger_zoom = gtk.Button("Zoom In")
+        bigger_zoom.connect("clicked", self.__set_bigger_cb)
+        hbox.pack_start(bigger_zoom)
+        output_png = gtk.Button("Output Png")
+        output_png.connect("clicked", self.__output_png_cb)
+        hbox.pack_start(output_png)
         window.connect('destroy', gtk.main_quit)
         window.show_all()
-        #gtk.bindings_activate (gtk.main_quit, 'q', 0)
+        #gtk.bindings_activate(gtk.main_quit, 'q', 0)
         gtk.main()
-    def __set_smaller_cb (self, widget):
-        self.__render.set_smaller_zoom ()
-    def __set_bigger_cb (self, widget):
-        self.__render.set_bigger_zoom ()
-    def __output_png_cb (self, widget):
-        dialog = gtk.FileChooserDialog ("Output Png", self.__window,
-                                        gtk.FILE_CHOOSER_ACTION_SAVE, ("Save",1))
+    def __set_smaller_cb(self, widget):
+        self.__render.set_smaller_zoom()
+    def __set_bigger_cb(self, widget):
+        self.__render.set_bigger_zoom()
+    def __output_png_cb(self, widget):
+        dialog = gtk.FileChooserDialog("Output Png", self.__window, 
+                                       gtk.FILE_CHOOSER_ACTION_SAVE, ("Save", 1))
         self.__dialog = dialog
-        dialog.set_default_response (1)
-        dialog.connect ("response", self.__dialog_response_cb)
-        dialog.show ()
+        dialog.set_default_response(1)
+        dialog.connect("response", self.__dialog_response_cb)
+        dialog.show()
         return
-    def __dialog_response_cb (self, widget, response):
+    def __dialog_response_cb(self, widget, response):
         if response == 1:
-            filename = self.__dialog.get_filename ()
-            self.__render.output_png (filename)
-            widget.hide ()
+            filename = self.__dialog.get_filename()
+            self.__render.output_png(filename)
+            widget.hide()
         return
 
 
 
 def read_data(filename):
-    timelines = Timelines ()
-    colors = Colors ()
+    timelines = Timelines()
+    colors = Colors()
     fh = open(filename)
-    m1 = re.compile ('range ([^ ]+) ([^ ]+) ([^ ]+) ([0-9]+) ([0-9]+)')
-    m2 = re.compile ('event-str ([^ ]+) ([^ ]+) ([^ ]+) ([0-9]+)')
-    m3 = re.compile ('event-int ([^ ]+) ([^ ]+) ([0-9]+) ([0-9]+)')
-    m4 = re.compile ('color ([^ ]+) #([a-fA-F0-9]{2,2})([a-fA-F0-9]{2,2})([a-fA-F0-9]{2,2})')
+    m1 = re.compile('range ([^ ]+) ([^ ]+) ([^ ]+) ([0-9]+) ([0-9]+)')
+    m2 = re.compile('event-str ([^ ]+) ([^ ]+) ([^ ]+) ([0-9]+)')
+    m3 = re.compile('event-int ([^ ]+) ([^ ]+) ([0-9]+) ([0-9]+)')
+    m4 = re.compile('color ([^ ]+) #([a-fA-F0-9]{2,2})([a-fA-F0-9]{2,2})([a-fA-F0-9]{2,2})')
     for line in fh.readlines():
-        m = m1.match (line)
+        m = m1.match(line)
         if m:
-            line_name = m.group (1)
-            timeline = timelines.get (m.group (1))
-            rang = timeline.get_range (m.group (2))
-            data_range = DataRange ()
-            data_range.value = m.group (3)
-            data_range.start = int (m.group (4))
-            data_range.end = int (m.group (5))
-            rang.add_range (data_range)
+            line_name = m.group(1)
+            timeline = timelines.get(m.group(1))
+            rang = timeline.get_range(m.group(2))
+            data_range = DataRange()
+            data_range.value = m.group(3)
+            data_range.start = int(m.group(4))
+            data_range.end = int(m.group(5))
+            rang.add_range(data_range)
             continue
-        m = m2.match (line)
+        m = m2.match(line)
         if m:
-            line_name = m.group (1)
-            timeline = timelines.get (m.group (1))
-            ev = timeline.get_event_str (m.group (2))
-            event = EventString ()
-            event.value = m.group (3)
-            event.at = int (m.group (4))
-            ev.add_event (event)
+            line_name = m.group(1)
+            timeline = timelines.get(m.group(1))
+            ev = timeline.get_event_str(m.group(2))
+            event = EventString()
+            event.value = m.group(3)
+            event.at = int(m.group(4))
+            ev.add_event(event)
             continue
-        m = m3.match (line)
+        m = m3.match(line)
         if m:
-            line_name = m.group (1)
-            timeline = timelines.get (m.group (1))
-            ev = timeline.get_event_int (m.group (2))
-            event = EventInt ()
-            event.value = int (m.group (3))
-            event.at = int (m.group (4))
-            ev.add_event (event)
+            line_name = m.group(1)
+            timeline = timelines.get(m.group(1))
+            ev = timeline.get_event_int(m.group(2))
+            event = EventInt()
+            event.value = int(m.group(3))
+            event.at = int(m.group(4))
+            ev.add_event(event)
             continue
 
-        m = m4.match (line)
+        m = m4.match(line)
         if m:
-            r = int (m.group (2), 16)
-            g = int (m.group (3), 16)
-            b = int (m.group (4), 16)
-            color = Color (r/255, g/255, b/255)
-            colors.add (m.group (1), color)
+            r = int(m.group(2), 16)
+            g = int(m.group(3), 16)
+            b = int(m.group(4), 16)
+            color = Color(r / 255, g / 255, b / 255)
+            colors.add(m.group(1), color)
             continue
-    timelines.sort ()
+    timelines.sort()
     return (colors, timelines)
 
 
 
 def main():
-    (colors, timelines) = read_data (sys.argv[1])
-    (lower_bound, upper_bound) = timelines.get_bounds ()
-    graphic = GraphicRenderer (lower_bound, upper_bound)
-    top_legend = TopLegendRenderer ()
-    range_values = timelines.get_all_range_values ()
+    (colors, timelines) = read_data(sys.argv[1])
+    (lower_bound, upper_bound) = timelines.get_bounds()
+    graphic = GraphicRenderer(lower_bound, upper_bound)
+    top_legend = TopLegendRenderer()
+    range_values = timelines.get_all_range_values()
     range_colors = []
     for range_value in range_values:
-        range_colors.append (colors.lookup (range_value))
-    top_legend.set_legends (range_values,
-                            range_colors)
-    graphic.set_top_legend (top_legend)
-    data = TimelinesRenderer ()
-    data.set_timelines (timelines, colors)
-    graphic.set_data (data)
+        range_colors.append(colors.lookup(range_value))
+    top_legend.set_legends(range_values, 
+                           range_colors)
+    graphic.set_top_legend(top_legend)
+    data = TimelinesRenderer()
+    data.set_timelines(timelines, colors)
+    graphic.set_data(data)
 
     # default range
-    range_mid = (upper_bound - lower_bound) /2
-    range_width = (upper_bound - lower_bound) /10
+    range_mid = (upper_bound - lower_bound) / 2
+    range_width = (upper_bound - lower_bound) / 10
     range_lo = range_mid - range_width / 2
     range_hi = range_mid + range_width / 2
-    graphic.set_range (range_lo, range_hi)
+    graphic.set_range(range_lo, range_hi)
 
-    main_window = MainWindow ()
-    main_window.run (graphic)
+    main_window = MainWindow()
+    main_window.run(graphic)
 
 
-main ()
+main()